Milk and dairy products are the major source of iodine for the UK population and are also a source of selenium. The contribution of milk and dairy products to iodine and selenium intakes is greatest in adult females (35% and 6% respectively). Observational evidence has repeatedly reported milk consumption to be positively correlated with iodine status and iodine intakes. Research in Iceland and New Zealand has reported that milk consumption is not associated with selenium status; however it is unknown if this is true for the UK population.